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o $1 l n arieh. tstra gattini ffmc.

IMPROVED MEANS FOR PROPELLING VESSELS.-

dit .statali maar tn it ttesr'vrtim @anni nut mating am nf it: stme.

T0 ALL WHOM -IT MAY CONCERN: l

. Beit known that I, CHARLES W. C Anoon, of Portland, in the county ofCumberland, and State of Maine, have invented a new *and usefulimprovement in the Propulsion of Vessels; and I do hereby declare thatthe following is a full and exact description thereof, reference beinghad to the accompanying drawings, and to the letters of reference markedthereon. l l

Figure 1 represents a side elevation of my invention. Figures 2, 3, 4,and-5 represent sectionalf'views of parts of the same. vSimilar lettersof reference in the different figures refer to the same things.

The object of my invention is to applyth'e undulatory motion of the seato the.lpropulsion of vessels through the medium of pumps.

Also to afford ameans of regulating the movement of the connecting-rodsby which the pumps are actuated,

so that the length of stroke ofthe pistons may-be governed.

Also to propel vessels by direct impact of Huid when the propellingstreams are made to issue in a daring manner, and to steer vesselsthereby.

Also to cause the impelling fluid to act obliquely downwards lto theline of motion of the vessel when being n.

i propelled. i

In order that those skilled in the art may be able to construct myinvention, I will proceed to describe it.

A A2,'ig. 1, represent two sea-going vessels, one being forward-of andat a short` distance from the other. B represents a framing extendingvertically down by the sides of both vessels nearly to their keels, andreaching from within a short distance of the stem of the forward vesselto within a short distance of the stern of the after one, extendingabove the tops of the vessels about one-quarter further than below, andbeing connected at the top by lateral framework. This framing is made ofgreat thickness and strength, and has the lower part which'A enters thewater made in `wedge form. It is jointed to each vessel by shafts, vC C,and allowed to vibrate, the. shafts passing laterally across the decksof the vessels about midships Attached to this framing is oth'er framingwhich passes around the stem of the forward vessel and the stern oftheafter one, having its shape corresponding to that of th vessels, so4that the entire framing enclosesfboth vessels, allowing them to playinside of it for propulsion by the waves; thelatter framing beingrepresented by the letters :v x. The shafts are also of great strength,andare attached to the framing by caps passing over their endsl withbolts passingv through the sides-of the caps and the shafts, havingtheir rims made very broad and bolted to the framing, the

shafts turning with the framing on bearings attached to the vessels.' DD are'connecting-rods attached to framing B, andto the pistons E E,these. pistons being parts oftwo force-pumps, F F, `on vessel A. G is anair chamber. H H areY induction pipes leading from the outside of thevessel near the stern, to the force-pumps F F. I I are pipes leadingfrom the force-pumps to the air chamberyGrM K K'iare eduction pipesleading from the air chamber G, through the stern and outside of thevessel, running i'n au oblique downward direction, this direction beingfor the purpose of causing the impact of the fluid towards the mostresisting part of the water.

The outlet ends of .these pipes are v flattened and curved, so as togive the streams a Haring form, a longitudinal lateral section thereofbeing shown in iig. 5,'the straight part being that nearest the stern ofthe vessel, and the daring part the farthest therefrom, so that a veryquick and. decided action will be made upon thev vessel inl steering, aswell 'as the exposure of a large -frictional surface in the impact. Inthese pipes, K K, near the stern, are. placed valves L L, for steeringthe vessels, these valves being connected with a wheel and pulley, V, ondeck, so that each can be operated alternately at the same time; thatis, one shut or partially while the other is open or partially. Thesepipes, K K, are made smaller in' diameter than the induction pipes, sieas to produce rapid streams. s

The operation is this: as the vessels change their relative positions bythe undulating motion of the sea, the framing B is caused to vibrate,and the pumps F F to be worked,.drawing the water in through theinduction pipes, which are large in diameter, and forcing it outthroughthe eduction pipes, which are small in diameter, against thewater'outside of the vessels, causing them to be propelled thereby. i

Mrepresets a pipe extending from one of the force-pumps to theother,fhaving a valve, N, in the same, a spout, O, leading therefromoutside of the vessel, for the purpose of regulating the speed. When thevalve N is open the pumps will not act to propel the vessels, but whenpartially open there would be somo action, depending upon the extent ofthe opening. The spout is to carry off outside of the vessel anyl waterthat might issue from the valve N. Fig. 3, a represents a force-pump, bthe piston, c c two rods jointed to the centre of the piston andextending outwards; d d are two slotted-arches attached to the sides ofthepump, and extending upwards from lthe top about the same distance asthe length of the pump. e e are two rods jointed to the rods c c, andextending inwards and jointed to the main connecting-rod, D; the'pinswhich join the rods c c and e e passing through'the slots in 'the archeson bothv sides, causing thev rods to follow the direction of the slots,the lower part of which,.and for about one-third of their length, havingan oblique curved course inward towards eachother; after which,and forabout one-third more of their length, they have a straight parallelcourse, and for the rest of their length they have again an inwardoblique curved course, so that the piston can be conined to a limit ofstroke without regard vto any irregularityof the waves; requiring lesslength of pumps, preventing unusual strain upon the machinery, or'sudden and dangerous increase of speed; and allowing the use ofdouble-acting pumps when desired. When the waves. are of' the averageheight the rods will move only in the parallel part of the slots, butwhen above they will be carried into the obliquepart. P represents adoubleacting trunk engine; Q -a pipe leading from the same tothe airchamber G. Attached to the under side of the piston of the engine P, isa'connecting-rod leading to a crank on a longitudinal shaft, R, on theend of which is a propeller, S, so that the propeller may be usedinpropelling the vessels in'conjunction with the streams fromthee'duction pipes K K, and the streams be used mainly for steering. 'lrepresents an ordinary rudder which maybe used in conjunction With thestreams. 'U is a pipe for carrying oii` the fluid after it has beenthrough the engine. The operation when the propeller-wheel is used isthis: as the undulatory motion of the sea actsl upon the pumps F F, theywill draw water from the outside of the vessel, cause it to be forcedinto the air chamber G, and from thence through the pipe Q, to theengine P, and operating thev engineit will pass into the pipe U, and becarried to the outside of the vessel, the operationof the engine causingthe prope1ler-wheel to be revolved and the vessels propelled. v i pHaving thus described my invention, I would remark that air may be used`in the pumps instead of water if desired, in which case the inductionpipes should open into the air; also, that a common engine governor maybe connected with the machinery to regulate its action, either with avalve in the air. chamber or in one of the pipes leading therefrom. I Aiiexible pipe may extend from theairchamber on vessel A2, along theframing B, to an engine-on vessel A, the engine being connected with acrank-shaft extending through the stern of the vessel,wi.th a propellerou its end, so that both vessels may have propellers operated by one setof pumps. I would further remark that in the construction of the framingconnecting the two vessels, I recommend that it be made of the best shiptimber, and plankin g, in several thicknesses, placed vertically andhorizontally, bolted together with great regard to strength, havingknees both of wood and iron wherever they can be advantan geouslyplaced, with bolts running' diagonally from the top of the framing tothe bottom; the whole work thereon being done with a view ofapproximating to the same strength in the connections as if the twovessels were one; that is, as strong as a vessel would be of the lengthof the tw in any'paity of her. If it should be desired to have butlittle framing above the tops of the vessels, as with naval ships, anarmniay extend from the main shaft to which the framing is attached onthe after vessel, down into the hold of the vessel, and the pumps F Fplaced also in the hold horizontally, having their connecting-rodsoperating the piston attached to this arm, so that as the shaft wasturned by the vibration of the framing, the pumps would be operated bythe arm,and the vessel'spropelled. The framing in this case could bemade' proportionably thicker, and, for naval vessels, iron plated.Auxiliary engines may be upon one or both of the vessels to propel themin and out of harbors.

` What I claim as new, and desire to secure by'Letters Patent, is-

The application of the undulato'r'y m'otion oi" the sea to thepropulsion oi' vessels by means .of pumps, and substantially asdescribed. V

I also claim controlling the movement of the connecting-rods by whichthe pumps are actuated, so that the length of stroke of the pistons maybe governed, substantially as described. y CHAS. W. CAHOON.

Witnesses:

JAMES B. CAHooN, Jeux, A. LIDBACK.

